Re: [PATCH 1/2] pread: new module

[Richard W.M. Jones]

I'm getting the following error when cross-compiling with
--host=i686-pc-mingw32:

  make[4]: Entering directory `/home/rjones/d/libguestfs-mingw/daemon/lib'
    GEN    configmake.h
    CC     pread.o
  pread.c:34: error: conflicting types for 'pread'
  ./unistd.h:705: note: previous declaration of 'pread' was here
  pread.c: In function 'pread':
  pread.c:49: warning: implicit declaration of function '__libc_read'
  make[4]: *** [pread.o] Error 1
  make[4]: Target `all-am' not remade because of errors.
  make[4]: Leaving directory `/home/rjones/d/libguestfs-mingw/daemon/lib'
  make[3]: *** [all-recursive] Error 1

Lines 704-706 of unistd.h are:

  # if !0 || 0
    extern ssize_t pread (int fd, char *buf, size_t bufsize, off_t offset);
  # endif

Line 33-34 of pread.c are:

  ssize_t
  pread (int fd, void *buf, size_t nbyte, off_t offset)

I'm guessing the problem is void * vs char *, unless the off_t types
also differ.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw